Abstract Treatment of 4,6-diacetate 3 with tert -butyl hydroperoxide gave the S N 2′ product 6 in high yield, the formation of which presumeably involves an intermediary nitronate. The thus prepared 6 reacted with nucleophiles to afford 2,3-anhydro derivatives having the talo configuration.
摘要用叔
丁基氢过氧化物处理4,6-二
乙酸酯3可得到高收率的SN 2'产物6,其形成可能涉及中间体
亚硝酸盐。如此制备的6与亲核试剂反应,得到具有talo构型的2,3-脱
水衍
生物。